* Free Freight Terms Do Not Apply *
Price: $1,790.00
Item #BILCO-GS-50
Write a review!
Description
The Bilco GS-50 is a 36-inch by 30-inch Type GS roof hatch that provides the added benefit of a skylight. Built with an aluminum cover and curb, it includes a clear polycarbonate dome, fully insulated cover and curb, overlapping flange design, welded corners, and EPDM gasket for weather tightness. It operates with compression spring operators and includes an automatic hold-open arm to support safe access and easy one-hand operation.
Key Features:
-
Polycarbonate dome roof hatch cover provides natural light and skylight functionality
-
Fully insulated cover and curb with overlapping flange and welded corners for weather and thermal performance
-
EPDM gasket permanently adhered to cover for reliable sealing
-
Compression spring lift assistance plus automatic hold-open arm ensures safe, easy operation
-
Fixture in aluminum construction with positive latches, stainless hinges, and the Bil-Clip flashing system
Specifications
- Width × Length (curb-to-curb): 36″ × 30″ (914 mm × 762 mm)
-
Material: 11 gauge (2.3 mm) aluminum cover and frame
-
Dome: Clear polycarbonate dome; single-dome standard (double dome optional)
-
Curb: 12″ (305 mm) height, integral cap flashing; 3½″ (89 mm) mounting flange with pre-drilled 7⁄16″ (11 mm) holes; fiberboard insulation 1″ (25 mm) thick
-
Gasket: Extruded EPDM rubber gasket permanently adhered to cover interior
-
Hardware: Heavy pintle hinges with type-316 stainless steel hinge pins; slam latch with interior/exterior handles plus padlock hasps
-
Lift Assistance: Compression spring operators enclosed in telescopic tubes; automatic hold-open arm with grip handle release
How To
- Prepare the roof opening sized 36″×30″ and ensure curb is properly built.
-
Set the GS-50 hatch over the curb, align flange and fasten into mounting holes.
-
Attach dome cover, hinges, latch, and spring lift hardware; install hold-open arm.
-
Test cover opening and closing for smoothness, check gasket seal, and verify latch engagement.
FAQs
Q: Does the GS-50 include a skylight or dome?
A: Yes. It features a clear polycarbonate dome for daylight access.
Q: Is the GS-50 fully insulated?
A: Yes. Cover and curb are insulated with fiberboard and fully welded corners.
Q: What operation assistance is included?
A: Compression spring operators and an automatic hold-open arm are included.
Q: What materials are used for the dome’s gasket and hinges?
A: Dome gasket is extruded EPDM; hinges use type-316 stainless steel hinge pins.
Reviews (0) • Write a review!
This product has no reviews yet. Write a review!
Bilco F-40 - Aluminum Cover Galvanized Steel Curb Roof...
Easy one-hand operation to the fully open or close position provides the ladder user the security of having one hand firmly on the ladder at all times
Price: $3,915.00
Availability: In Stock
Usually ships within 1-2 Business Days
The Bilco F-40 Roof Hatch is designed to provide secure ladder access through a 48 inch by 48 inch roof opening. Built with heavy-gauge galvanized steel, aluminum, or stainless steel, it offers long-lasting durability. The insulated cover and curb improve energy efficiency while the compression spring hardware ensures smooth and easy operation. Fully welded corners and an EPDM gasket help maintain a weather-tight seal in demanding rooftop environments. Key Features: 48x48 opening for ladder...
Bilco E-20 - Galvanized Steel Roof Hatch, 36" x 36"
Ladder Access / Slightly Larger Opening
Price: $1,460.00
Availability: In Stock
Usually ships within 1-2 Business Days
The Bilco E-20 is a 36-inch by 36-inch Type E roof hatch designed primarily for ladder access. It features either galvanized steel or aluminum cover and frame, with 1″ insulation in cover and curb, EPDM gasket, and a hold-open arm that locks the cover in the open position. Operation is aided by compression spring operators, and the hatch includes overlapping flange design, fully welded corners, and the Bil-Clip flashing system for secure installation of roofing material. Key Features: Ladder...
Bilco NB-50TB - Thermally Broken Roof Hatch, 30" x 54"
Ship Stair Access
Price: $1,893.00
Availability: In Stock
Usually ships within 1-2 Business Days
The Bilco NB-50TB is a thermally broken roof hatch sized 30-inch by 54-inch designed for ship stair access. It uses aluminum cover and frame, both insulated with approximately 3-inch (75 mm) polyisocyanurate for R-18 thermal performance. The hatch features an extruded EPDM gasket permanently adhered to the cover, heavy-duty pintle hinges with stainless steel hinge pins, a slam latch with interior/exterior handles and padlock hasps, lift assistance via compression spring operators enclosed in...
Bilco NB-20VM - Steel VersaMount Access Hatch, 30" x 54"
For Ship Stair Access
Price: $1,875.00
Availability: In Stock
Usually ships within 1-2 Business Days
The Bilco NB-20VM is a 30-inch by 54-inch VersaMount roof hatch designed for ship stair access. It is intended for retrofit over an existing curb, eliminating the need to remove roofing membrane. The hatch uses galvanized steel construction with a low-profile curb, built-in apron, anchor clip system, 1″ (25 mm) concealed fiberglass insulation in cover and curb, overlapping flange, fully welded corners, EPDM gasket, compression spring operators, slam latch with interior/exterior handles, and a...